MaplePrimes Questions

Maplesoft uses deprecated power pc compatibility not supportred by mac osx lion. lmutil crashes and forces me to quit the application.Unable to get host ID

My contour of integration is a semi circle whose diameter rests on the imaginary axis from -ri to ri.  The arc of radius r is on the positive real axis going from -ri to ri.  On the curve I want to have directional arrows indicating that I am traversing this contour in the positive direction.  How do I create this figure in MAPLE?

my problem is probably that maple assigns everywhere possible the whole expression (cause its analytical)

How do i get it to calculate a float and save it as such?

e.g.

interfaceenergy:=5.

sig:=200.*10^6

Temp:=fsolve(xi_M[Temp,sig,interfaceenergy)=0.5,T, T=100..400])

whattype(Temp) ---> function

...this is part of a nested loop (2) so after some time of calculating maple says

"Error unable to store.... and then...

Dear all, 

I have two questions regarding truncated normal distribution.

1. Is there a convenient way in Maple to compute and plot the density function of a truncated normal distribution? I know that in Maple, after creating a random variable, I can use the function Statistics:-PDF to compute the density function, and use DensityPlot to draw the function. But for truncated distribution, I have to compute it manually by doing integration to compute the normalized...

I have a problem.

I solved a problem, but i like to get one solution for one variable.

i send my project.

help me please.21-07-2011_-ecuacion.mw

I am working with two multivariate functions A and B, with coefficients over a finite field. The x-degree of A is greater than or equal to B, which is greater than or equal to 1, and thus I want to find q and r such that:

A = q*B + r, where q, r are elements of K(y,z)[x], where K is my finite field. Obviously, I would like the x-degree of r to be less than that of B, and r not equal to 0.

My problem is this: the Rem and Quo commands, which will deal with my...

Hi,

I have explored some multi-animation with maple, but I can not change the parameters one by one.

http://www.mapleprimes.com/questions/99833-Procedure-For-ANIMATE-Multiparametrique

Command Explore is analog to Mathematica's Manipulate but the problem in a new worksheet.

How to get Explore like Manipulate in the same worksheet ?

alex_01

hi, i cant solve the following ODE and Boundary conditions in maple. please help me. i use dsolve and ode analyser but i cant receive and conclusion. thanks.

 

restart:
#beta:=.01;
#lambda:=.3;
s:=f(x)^2*diff(f(x),x,x)+x*f(x)*(1-2*beta)+beta*diff(f(x),x)*(x^2-1);
 
bcs:=f(1)=0,D(f)(-lambda)*f(-lambda)=beta*(lambda^2-1);
     

Dear guys

In my program I have a loop and after some calculation I want to write the results. I use:

" writedata("D:\\arvin\\bao-cmb-h.txt", convert(T, array), float);"

but maple give me an error:

" Error, (in convert/list) object too large "

how can I write my data?

Thanks.



I have a strange error when i try to plot an ODE with "numeric,method=gear,parameters=[...]" as options activated. After this implementation I give the parameter a value: ODE(parameters=[123]); -> works. But when I type "odeplot(ODE, [x(t),y(t)],10..20,numpoints=100);" for example, i get the errormessage:

" Error, (in dsolve/numeric/gear) Array index out of range"

But when i remove the option "method=gear", so that the ODE is solved with default runge-kutta...

I'm developing an application that I'd like to use elements of an array as parameters in MapleSim components - is there a way to use Maple arrays/vectors in MapleSim?

 

Also is there a way to open a file and read its contents (data) as the starting point (parameter set) for a MapleSim simulation?

Why does the following derivative vanish?

f:=k->(y->y^k);

h:=z->f(2)(z);

D(h);

 

Note: I am aware that setting h:=f(2) would give the correct result. However, I would like to use the arrow -> notation in a more complicated problem. Also, it seems odd that the plot(h) displays the graph of z->z^2, while D(h) gives 0.

The quantity ω(x):= limsup_T->+infinity Pi/T*ν(x,T) is said to be the frequency of a function x:[0,infinity)->R,
where ν(x,T) equals the number of zeros (taking into account  the multiplicities) of the function x on the interval [0,T].
a) To estimate from above the frequency of any non-zero solution of the ODE diff(x(t),t$2011)+x(t)=0.
b) To find the frequency of the function x(t):=sin(t)+sin(Pi*t).

Edit.

I have a variable number of pointplots c[1] .. c[i] and i want to plot all in a single plot.

I tried display(c[k],k=1..i); or display(c[k]$k=1..i); but i got an error. Typing evey list like: display(c1,c2,c3,....); is not possible because i is variable. What can i do?

I used the folowing command to solve a system of equations:

fsolve(equations,variables);

then the results were on the following form:

{u1=.1,u4=1,u5=3,u2=4,u3=0}

but I want to rearrange as:

{u1=.1,u2=4,u3=0,u4=1,u5=3}

please help me and i will very grateful for you... 

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